224 PCS Metric M6 M8 M10 Heavy Duty Hex Cap Bolts and Nuts Flat & Lock Washers Assortment Kit, 12.9 Grade Alloy Steel Metric Fully Thread Hexagon Allen Machine Bolt, 8 Most Common Sizes, DIN 933

The nuts are nutting. The washers are washing. The lock washers are lock washering.

I spray painted conduit hangers black so I was looking for nuts and bolts that I would not have to spray paint since I would be taking the prop jars off and on, to change water, and spray paint affects thread. These were perfect for my propagation plant wall!

Metric screws and bolts are becoming increasingly common is products sold in the US, so I try to keep an assortment of metric hardware on hand for repairs and for DIY projects. I find that approach to be a big time saver and ultimately more economical than buying individual bits at the hardware store. This set of 6mm hardware is a great addition to my collection.The set includes hex head bolts in various lengths along with nuts, flat washers and lock washers. They are packaged in a sturdy case with clear labels indicating the size. At $14.59 for a 144 piece set, I would rate this as a good value and recommend this set to any DIY'er or maker looking to keep commonly used hardware on hand.

Great assortment to have on hand when you need to replace an unusual size bolt.

The fit and finish looked pretty good, no obvious vacations in the plating or coating. The threads seem to be well cut and had no obvious burrs. The nuts were a little lightweight.I wanted to figure out how strong they were, because they do feel a bit light. I put the head of a 30 mm bolt in my vise, added a washer, a steel 1/2" long spacer, another washer and one of the nuts from the kit. I ran the nut done until finger tight. I then used a 10mm socket on a beam type torque wrench. I saw the reading go to 20 ft-lbs, then as I continued to tighten the reading dropped to 17, then 15, then 10. Removing the nut took a bit of force, a bit beyond finger tight all the way off. The threads in the nut had started to tear and stretch. A closer inspection of the both showed that the tips of the threads in the tightening area were down to bare metal. But, they looked ok. With a good metric thread gauge, I could see that the bolt had stretched enough so that the gauge would rock on the tightening area, but was flat against the threads above the tightening zone.Looking up the torque charts for a steel M6x1.0, shows about 7 foot pounds. So, these did pretty well as they made it to 20 foot pounds before failing.

Very useful

They have a good variety of sizes and if you are working on bigger projects you could go through these fast. For the basic user, you may not need as many as this.The quality is good but not great. I would not trust these to loads but are nice for keeping things in place. The case broke easy but I didn't need it since I use many of these bolt quick in projects.For the price, cant complain. If I was in need of this to live, I'd buy a stronger rated bolt.

This M6 set of bolts, nuts and washers is of decent quality. They appear to have been fairly well machined with a minimal amount of burrs. This set includes a wide assortment different length bolts one may need when working on a project. The container box is handy with compartments for each of the components and labels on the cover. The components were coated with oil, which I would think to prevent rusting. I also noticed that the black finish on the components are prone to scratching off when force is applied.